|The cultivar 'Trewithen Blue' is a robust cultivar, which can attain very large proportions, possibly as much as twenty feet in height and slightly more in width. The late spring blooms are scented and borne in abundant bluebery-blue panicles.
C. Ceanothus is a compact, low-growing, broad, evergreen shrub. Leaves are oblong, glossy, dark green and finely toothed up to 2 inches long. Dark blue flowers are borne profusely in large lateral cymes up to 3 inches long. Excellent for a shrub border or against a sunny wall.